EP 0651622 B1 19980225 - Trocar and trocar catheter for drainage
Title (en)
Trocar and trocar catheter for drainage
Title (de)
Trokar und Trokarkatheter für Drainage
Title (fr)
Trocart et cathéter à trocart pour drainage
Publication
Application
Priority
- US 9405232 W 19940511
- US 6446193 A 19930511
Abstract (en)
[origin: US5295977A] A trocar catheter includes a trocar rod having a stepped diameter distal end for use with a catheter having a stepped diameter lumen wherein the trocar is inserted into the lumen of the catheter and the trocar is used to incise a patient and install the catheter after which the trocar is removed from the lumen of the catheter. The distal end of the trocar rod is provided with a stepped coaxial bore into which a piercing point rod, a spring and a safety sleeve are assembled. The piercing point rod has a proximal small diameter portion which is press fit into a correspondingly small diameter portion of the coaxial bore in the distal end of the trocar rod. The spring is carried on the small diameter portion of the piercing point rod and biases the safety sleeve in a distal direction. The distal end of the piercing point rod has a larger diameter portion tapering to a piercing tip and the safety sleeve has a stepped inner diameter which prevents it from moving beyond a predetermined distal position covering the piercing tip. The stepped coaxial bore has a large diameter portion for receiving the safety sleeve when it is pressed proximally against the spring. A protrusion on the distal outer surface of the safety sleeve prevents the catheter from accidentally slipping off the trocar.
IPC 1-7
IPC 8 full level
A61B 17/34 (2006.01); A61M 25/06 (2006.01); A61B 19/00 (2006.01)
CPC (source: EP US)
A61B 17/3496 (2013.01 - EP US); A61M 25/0606 (2013.01 - EP US); A61B 17/3474 (2013.01 - EP US); A61B 17/3478 (2013.01 - EP US); A61B 2090/0811 (2016.02 - EP US); A61M 25/0612 (2013.01 - EP US)
Citation (examination)
- US 4532935 A 19850806 - WANG KO P [US]
- US 5137509 A 19920811 - FREITAS MICHAEL W [US]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU NL SE
DOCDB simple family (publication)
US 5295977 A 19940322; AT E163353 T1 19980315; AU 6831094 A 19941212; AU 684788 B2 19980108; CA 2140129 A1 19941124; DE 69408630 D1 19980402; DE 69408630 T2 19980716; EP 0651622 A1 19950510; EP 0651622 B1 19980225; JP 3532206 B2 20040531; JP H08501717 A 19960227; WO 9426183 A1 19941124
DOCDB simple family (application)
US 6446193 A 19930511; AT 94916733 T 19940511; AU 6831094 A 19940511; CA 2140129 A 19940511; DE 69408630 T 19940511; EP 94916733 A 19940511; JP 52567394 A 19940511; US 9405232 W 19940511